Looking back at Boris Johnson's three-year reign as Prime Minister

STV News political editor Colin Mackay assesses Boris Johnson's spell in office.

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Boris Johnson has resigned as Conservative Party leader, bringing to an end his reign as Prime Minister.

He intends to remain in Downing Street until autumn, by which time the party will have elected a new leader.

In this video report, STV political editor Colin Mackay looks back on Johnson’s time in office.